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1.Preparation of resinous reaction products of sulphur dioxide and olefins 失效
Title translation: 二氧化硫和烯烃的树脂反应产物的制备公开(公告)号:US2258702A
公开(公告)日:1941-10-14
申请号:US22870538
申请日:1938-09-06
Applicant: PHILLIPS PETROLEUM CO
Inventor: FREY FREDERICK E , OF BARTLESVILLE FIRST NATIONAL
IPC: C08G75/22
CPC classification number: C08G75/22